Norton 66243529609 Cutoff Wheel 4 in 60 Grit 19100 Rpm

Product Description

The NORTON 66243529609 is a Type 1 flat aluminum oxide cutoff wheel designed for fast, straight cutting on steel. It measures 4 inches in diameter, 0.035 inches thick, with a 3/4 inch arbor hole. The wheel is resinoid-bonded with a 60-grit aluminum oxide abrasive and reinforced on both sides for added durability under load. Rated to a maximum of 19,100 RPM, it is sized for use with die grinders in production and maintenance applications. The hardness code is O, indicating a medium-hard bond grade suited for general-purpose steel cutting.

This cutoff wheel is intended for use on steel in fabrication, maintenance, and repair settings. Its compact 4-inch diameter makes it well-suited for die grinder use in tight spaces, weld seam removal, pipe notching, and general metal cutoff work. The Type 1 flat profile allows for straight plunge cuts. It is commonly used by pipefitters, welders, millwrights, and maintenance technicians working with ferrous metals in both shop and field environments.

Key Features

• Type 1 flat wheel profile for straight, controlled cutoff cuts
• 60-grit aluminum oxide abrasive optimized for steel cutting
• Both sides reinforced with fiberglass mesh for structural integrity under side loads
• Resinoid bond provides consistent grain exposure throughout wheel life
• 19,100 maximum RPM rating compatible with standard die grinder speeds
• 3/4 inch arbor hole fits common die grinder mandrel sizes

Compatibility

Designed for use with die grinders accepting a 4-inch diameter, 3/4 inch arbor cutoff wheel at speeds not exceeding 19,100 RPM. Rated application material is steel per manufacturer specification.

Installation Notes

Installation and wheel changes must be performed by qualified personnel following ANSI B7.1 safe use guidelines for abrasive wheels. Always inspect the wheel for cracks or damage before mounting and never exceed the rated maximum RPM. Ensure the grinder is disconnected from power before mounting or removing the wheel. Operate with appropriate eye protection, a face shield, and gloves; never use a cutoff wheel for side grinding unless the wheel is rated for that purpose.